qgscacheindexfeatureid.cpp

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/***************************************************************************
    qgscacheindexfeatureid.cpp
     --------------------------------------
    Date                 : 13.2.2013
    Copyright            : (C) 2013 Matthias Kuhn
    Email                : matthias dot kuhn at gmx dot ch
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "qgscacheindexfeatureid.h"
#include "qgsfeaturerequest.h"
#include "qgscachedfeatureiterator.h"
#include "qgsvectorlayercache.h"

QgsCacheIndexFeatureId::QgsCacheIndexFeatureId( QgsVectorLayerCache* cachedVectorLayer )
    : QgsAbstractCacheIndex()
    , C( cachedVectorLayer )
{

}

void QgsCacheIndexFeatureId::flushFeature( const QgsFeatureId fid )
{
  Q_UNUSED( fid )
}

void QgsCacheIndexFeatureId::flush()
{
}

void QgsCacheIndexFeatureId::requestCompleted( QgsFeatureRequest featureRequest, QgsFeatureIds fids )
{
  Q_UNUSED( featureRequest )
  Q_UNUSED( fids )
}

bool QgsCacheIndexFeatureId::getCacheIterator( QgsFeatureIterator &featureIterator, const QgsFeatureRequest &featureRequest )
{
  if ( featureRequest.filterType() == QgsFeatureRequest::FilterFid )
  {
    if ( C->isFidCached( featureRequest.filterFid() ) )
    {
      QgsFeatureIds fids;
      fids << featureRequest.filterFid();
      featureIterator = QgsFeatureIterator( new QgsCachedFeatureIterator( C, featureRequest, fids ) );
      return true;
    }
  }

  return false;
}